Abstract: tR,K′,α,Rs of oridonin, ponicidin,ludonin A,xindongnin A,lushanrubescensin A,adenathin, kamebakaurin and kanebacetal-A from Rabdosia diterpinoids were detemined by HPLC method.The analysis condi-tions are as follows :Shimadzu lnstrumemt LX-4A, column zorbax ODS 250 m m x 4.6 m m; mobile phase, methanol-warer (68 ;32);flow rate,0.58 ,ml/min;pressure, 170 kg/cm2;detector,SPD-2AS wave 254 nm.The results show that the method is quick and sinple.

Key words: Rabdosia